gcc/testsuite/gcc.target/i386/pr39543-1.c

   1 /* PR inline-asm/39543 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O3 -fomit-frame-pointer" } */
   4
   5 float __attribute__ ((aligned (16))) s0[128];
   6 const float s1 = 0.707;
   7 float s2[8] __attribute__ ((aligned (16)));
   8 float s3[8] __attribute__ ((aligned (16)));
   9 float s4[16] __attribute__ ((aligned (16)));
  10 float s5[16] __attribute__ ((aligned (16)));
  11
  12 void
  13 foo (int k, float *x, float *y, const float *d, const float *z)
  14 {
  15   float *a, *b, *c, *e;
  16
  17   a = x + 2 * k;
  18   b = a + 2 * k;
  19   c = b + 2 * k;
  20   e = y + 2 * k;
  21   __asm__ volatile (""
  22                     : "=m" (x[0]), "=m" (b[0]), "=m" (a[0]), "=m" (c[0])
  23                     : "m" (y[0]), "m" (y[k * 2]), "m" (x[0]), "m" (a[0])
  24                     : "memory");
  25   for (;;)
  26     {
  27       __asm__ volatile (""
  28                         :
  29                         : "m" (y[2]), "m" (d[2]), "m" (e[2]), "m" (z[2])
  30                         : "memory");
  31       if (!--k)
  32         break;
  33     }
  34   __asm__ volatile (""
  35                     : "=m" (x[2]), "=m" (x[10]), "=m" (x[6]), "=m" (x[14])
  36                     : "m" (y[2]), "m" (y[6]), "m" (x[2]), "m" (x[6]),
  37                       "m" (y[18]), "m" (s1)
  38                     : "memory");
  39 }
  40
  41 void
  42 bar (float *a)
  43 {
  44   foo (4, a, a + 16, s2, s3);
  45   foo (8, a, a + 32, s4, s5);
  46 }
  47
  48 void
  49 baz (void)
  50 {
  51   bar (s0);
  52 }